Taka is a vocalist of Japanese rock band ONE OK GO. In February 2015, he was featured as a guest vocalist on the track, "Dreaming Alone", from Against The Current's second EP, Gravity.

Taka's full name is Takahiro Moriuchi Before joining ONE OK GO, he was a member of the boyband NEWS throughout 2003 and Chivary of Music in 2004.

He is 27 years old

He has been a member of ONE OK GO since 2005

He is the son of famous Japanese singers Masako Mori and Shinichi Mori. He has a younger brother named Hiroki who is the lead singer of the band MY FIRST STORY.

In 2005, he changed his last name from Moriuchi (森内) to Morita (森田) due to the divorce of his parents. However, in the June 2012 issue of the magazine, ROCKIN'ON JAPAN, he stated in an interview that his real name is Takahiro Moriuchi. In 2013, he is shown again in a photo using his last name, Moriuchi, where all One Ok Rock band members held a written sign of their real names.

Taka signed with Johnny's Entertainment in 2002 and joined the boy band, NEWS, in 2003. He left in 2004 to "focus on his studies". He was briefly part of a band known as Chivalry of Music in 2004.

He was invited by guitarist/leader, Toru Yamashita, to join the Japanese rock band, One Ok Rock in 2005. The band released their first independent CD in 2006 and were signed by Amuse, Inc., whom they made their major debut with. The band did moderately well with music sales until they hit with major success in August 2012 upon the release of "The Beginning", which was the theme song for the live action movie adaption of the manga and anime, Rurouni Kenshin. The band's concerts have been sold out many times with high attendance and constantly adding new tour dates in Japan. One Ok Rock has also held concert tours overseas in Asia, U.S., Europe and South America.

In March 2013, the band, Simple Plan, announced a new version of their song "Summer Paradise" with Taka for a Japanese-only release  They later performed together at the music festival, Punkspring 2013 in Tokyo, Japan.

In November 2013, Taka helped Pay Money to My Pain to sing one of their songs on their tribute album "Gene" after their vocalist, K (Kei Goto), passed away due to heart failure.

In summer 2014, One Ok Rock's newest songs, "Mighty Long Fall" and "Heartache" were featured as theme songs for the live action movie sequels, Rurouni Kenshin: The Legend Ends and Rurouni Kenshin: The Legend Ends, respectively.

As of July 2015, One Ok Rock is signed with the U.S. label, Warner Bros. Records and plans to release an all English version of their album, 35xxxv in the fall.

Hw has said that his greatest musical influences are Linkin Park, Good Charlotte, Issues, and Simple Plan. He has also cited Chester Bennington from Linkin Park and Kellin Quinn from Sleeping With Sirens as his inspirations to switch from pop music to rock music.